Shamrock Co. has the following quantity discount policy with its supplier. Quantity Price per Unit 1-499 units $16.00 500-999 units $15.70 1,000-1,999 units $15.20 2,000 units + $14.45 The economic order quantity is 730 units and the annual usage is 15,226 units. The ordering cost (K) is $21 per order and the carrying cost of inventory (H) is $1.20 per unit. Determine the most cost effective order quantity. (Round answers to 2 decimal places, e.g. 125.74.) The most cost effective order quantity is Total Cost